Charlie Sheen

The highest-paid sitcom star on TV, "Two and a Half Men" actor Charlie Sheen has been, as E! Online put it, "less adept at managing his personal life." Sheen first entered rehab in 1990 to treat alcohol addiction. A few wives and many well-publicized parties later, in January 2011, he was still dealing with his demons when he was hospitalized in L.A. (his rep blamed abdominal pain.) Reports and porn-star accounts alleged a drug and alcohol-fuled party at Sheen's home and on Jan. 28, it was again announced that he would be seeking treatment.
(Rick Wilking / Reuters)
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Lindsay Lohan

"I always said I would die before I went to rehab," actress Lindsay Lohan told Allure magazine about her January 2007 treatment. If she only knew at the time how many more trips would follow thanks to a 2007 DUI conviction. In and out of court and jail, wearing alcohol-monitoring devices, violating probation and tweeting all the while, Lohan pledged on Twitter on Jan. 1, 2011 -- at the end of 90 days at the Betty Ford Clinic -- "Today is the first day of the rest of my life."
(Robyn Beck / AFP/Getty Images)
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David Arquette

David Arquette checked into rehab for treatment of "alcohol and other issues" on Jan. 1, 2011. The actor and his wife of 11 years, actress Courteney Cox, separated in October 2010. Reports of infidelity dogged Arquette and he took to sharing intimate details of his marriage, notably on Howard Stern's radio show.
(Matt Sayles / AP)
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Demi Lovato

Demi Lovato completed a 90-day in-patient treatment program in January 2011 after seeking "medical treatment for emotional and physical issues she has dealt with for some time." The actress/singer suffered a meltdown while touring in Latin America with the Jonas Brothers and her camp later said she had battled eating disorders, was bullied at school and had struggled with cutting. Any substance abuse issues have been consistently denied.
(Kevin Winter / Getty Images)
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Aaron Carter

Singer Aaron Carter entered a rehab center in January 2011 to treat addiction issues, according to an E! Online report. The former "Dancing With the Stars" contestant checked into a private Southern California facility earlier this month, said an E! source. In 2006, Carter starred in the E! reality show "House of Carters" with his family, including his older brother, Nick Carter of the Backstreet Boys. Later that year, Aaron appeared on "Celebrity Rehab 2" and was treated for substance abuse.
(John Shearer / WireImage)
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Jonathan Rhys Meyers

"The Tudors" star Jonathan Rhys Meyers was treated for alcohol addiction in London in May 2010. "He just really wants to get better," a source told People magazine. "This has been an ongoing battle for him." People reports Rhys Meyers first entered rehab in April 2007. He was arrested that November for public intoxication at the Dublin airport and was detained by police in June 2009 at the Charles De Gaulle airport in Paris after allegedly assaulting an airport lounge employee while drunk.
(Dave Hogan / Getty Images)
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Jesse James

Sandra Bullock's ex-husband, Jesse James, checked himself into a treatment facility in March 2010 in the hope of saving his marriage to the Oscar-winning actress after four women came forward to say they had had affairs with the motorcycle mechanic. His rep did not say what type of help James was seeking, but TMZ.com reported that James was heading to Sierra Tucson in Arizona, a clinic which specializes in drug, alcohol, and sex addiction. Bullock and James divorced, and a year later James announced his engagement to celebrity tattoo artist Kat Von D.
(Jason Laveris / FilmMagic)
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Steven Tyler

Singer Steven Tyler of Aerosmith entered rehab in December 2009 for a 90-day stint for an addiction to prescription painkillers resulting from 10 years of performance injuries, People magazine reported. Tyler said after 12 years of sobriety he began using again and that usage caused him to fall off a stage in South Dakota in August 2009. "I got 19 stitches, broke my shoulder," Tyler said. "No one in the band called me for 27 weeks. It about killed me."
(Frederick M. Brown / Getty Images for AMA)
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Tiger Woods

Professional golfer Tiger Woods took a break from the game in December 2009 after admitting marital infidelity following revelations about his personal life that erupted after a November car accident near his Florida home. Reports alleged that Woods entered a rehab facility in Pine Grove, Miss., to be treated for "sexual compulsion" and on Jan. 20, 2010, the National Enquirer published a photo allegedly showing Woods outside the facility.
(Toru Hanai / Reuters)
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Mischa Barton

Actress Mischa Barton was arrested in December 2007 on a DUI charge and secretly entered an undisclosed rehab facility to let the courts know that she realized her mistake and was not a "drunk," she told Marie Claire magazine.
(Tim Whitby / Getty Images for Samsung)
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David Duchovny

David Duchovny, who plays a sex-obsessed character on Showtime's "Californication," entered a rehabilitation facility for sex addiction in August 2008. The actor said he did so voluntarily, in a statement released by his lawyer, said "I ask for respect and privacy for my wife and children as we deal with this situation as a family."
(Max Nash / AFP/Getty Images)
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David Hasselhoff

Actor David Hasselhoff of "Baywatch" and "Knight Rider" fame admits to an alcohol addiction that began in the early 1970s. In May 2007, a home video showed the shirtless actor in a drunken stupor, lying on the floor trying to eat a cheeseburger while his daughter behind the camera says, "Tell me you are going to stop." Throughout 2009, numerous reports alleged that Hasselhoff was hospitalized for alcohol-related reasons.
(Frazer Harrison / Getty Images)
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Wynonna Judd

Wynonna Judd shot to stardom when she sang with her mother as country duo The Judds. On a 2003 "Oprah Winfrey Show" appearance, Judd discussed her "severe dependency on food." She was treated for a food addiction at the Shades of Hope rehab center in Texas.
(Rusty Russell / Getty Images)
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Robert Downey Jr.

Dogged by addiction from an early age, actor Robert Downey Jr. appeared to be back on track when he earned an Academy Award nomination for his work in "Chaplin" in 1992. But by 1996, the actor began a downward spiral of drugs and rehab and jail that had many declaring his career over. Often held up as the poster boy of successful Hollywood comebacks, a drug-free Downey has starred in the blockbuster "Iron Man" series as well as "Sherlock Holmes," "The Soloist" and "Tropic Thunder" in recent years.
(Nick Ut / WireImage)
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Tara Reid

According to her publicist, actress Tara Reid checked into the Promises Treatment Center in Malibu, Calif., on Dec. 12, 2008. The publicist did not specify what treatment was sought. A former child actress, Reid is known as much for her appearances in tabloids as for such films as "American Pie."
(Paul Buck / EPA)
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Amy Winehouse

Singer Amy Winehouse was admitted to rehab in January 2008 after struggling with drug and alcohol abuse. That same year, a video surfaced online that showed the singer smoking what appeared to be crack cocaine. In February, Winehouse dominated the Grammy Awards with five wins and performed her hit song "Rehab" via satellite from London.
(Kevork Djansezian / AP)
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Kirsten Dunst

In February 2008, Kirsten Dunst checked into the Cirque Lodge in Utah for an unspecified problem. A source told People magazine the "Spider-Man" actress has been "partying hard for a while."
(Francois Durand / Getty Images)
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Eva Mendes

Actress Eva Mendes checked into Utah's Cirque Lodge in January 2008 to seek professional help for undisclosed "personal issues." Mendes has starred in "Training Day," "2 Fast 2 Furious" and "Hitch" among other films.
(Marcus Brandt / AFP/Getty Images)
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Delta Burke

Actress Delta Burke checked herself into a clinic in 2008 to "adjust to medication," according to a rep for her husband, Gerald McRaney. Burke suffers from a "number of conditions" including depression, high blood pressure and diabetes.
(Marianne Todd / Getty Images)
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Eddie Van Halen

In a 2007 statement to fans posted on Eddie Van Halen's website, the guitarist said he decided to seek treatment because "at the moment I do not feel that I can give you my best. That's why I have decided to enter a rehabilitation facility to work on myself, so that in the future I can deliver the 110 percent that I feel I owe you and want to give you."
(Matt Sayles / AP)
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Britney Spears

Pop princess Britney Spears checked into Promises Malibu rehabilitation center on Feb. 22, 2007. Earlier in the same week, the singer voluntarily checked into the rehab center, and then checked out the following day. The singer also reportedly checked in and out of a facility in Antigua. She caused concern after shaving off her hair at a salon Feb. 16. The star regained some stability and released new music in recent years thanks in part to the watchful eye of her father.
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Isaiah Washington

Actor Isaiah Washington of ABC's "Grey's Anatomy" entered a facility to begin counseling related to his homophobic remarks about castmate T.R. Knight in Jan. 2007. At the time he issued a statement saying: "I regard this as a necessary step toward understanding why I did what I did and making sure it never happens again."
(Phil Mccarten / AP)
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Tara Conner

Miss USA 2006 Tara Conner, who had come under criticism amid rumors she had been frequenting bars while underage, finished a stay in an addiction treatment center in Pennsylvania in 2007. The Kentucky native has since admitted she is an alcoholic and used cocaine.
(Rick Maiman / AP)
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Eminem

In 2005, days after the rapper cited "exhaustion" for the cancellation of the European leg of his "Anger Management 3" tour, Eminem's rep confirmed that the artist had entered a drug rehabilitation facility in his native Michigan for dependency on sleep medication. In 2009, he released an album titled "Relapse," and followed it up in 2010 with "Recovery."
(Andrew Medichyini / AP)
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Whitney Houston

In 2002, after years of denying drug use, Whitney Houston admitted to using cocaine, marijuana and pills. In both 2004 and 2005, Houston checked herself into rehabilitation centers. The Grammy-winning singer divorced her husband of 15 years, Bobby Brown, in 2007.
(Fred Prouser / Reuters)
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Courtney Love

In 2004, Courtney Love was sentenced to 18 months in rehab as part of a plea deal for charges stemming from an incident in which the rocker tried to break into her ex-boyfriend's home while high on cocaine. The following year, Love admitted to using drugs in violation of her probation and was ordered into a 28-day drug treatment program.
(Matt Sayles / AP)
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The Osbournes

In addition to rocker Ozzy's numerous rehab stays, both Jack and Kelly Osbourne have sought help for drug abuse -- Kelly for painkillers, Jack for marijuana and alcohol. Sharon, matriach of the Osbourne clan, had once infamously tricked Ozzy into rehab by telling him there would be a bar.
(Dave Hogan / Getty Images)
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kate Moss

In 2005, supermodel Kate Moss checked into a clinic, following newspaper revelations suggesting she used cocaine. The scandal threatened to ruin her career, but instead it propelled her into the spotlight. Moss has since signed several contracts with top fashion houses. In 2006, she was briefly engaged to Babyshambles singer Pete Doherty, who has been in and out of rehab himself.
(Scott Wintrow / Getty Images)
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Mel Gibson

In 2006, actor/director Mel Gibson reportedly attended rehab after he was arrested on suspicion of driving under the influence, to which he later pled no contest. While in police custody, Gibson reportedly made lewd and anti-Semitic remarks. He later described the experience "as a gift to me, because it's made me really sort of scratch my head and focus on a couple of things that I needed to."
(Matt Sayles / AP)
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Mary-Kate Olsen

Actress Mary-Kate Olsen checked into rehab in Utah's Cirque Lodge in 2004 to reportedly be treated for an eating disorder. Reports of a rumored drug problem were denied by her publicist.
(Chris Polk / AP)
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Foxy Brown

In January 2007, rapper Foxy Brown was sentenced to anger management classes for a fight in a nail salon. She was later kicked out of the program for allegedly threatening an employee over a billing dispute.
(Scott Gries / Getty Images)
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Mike Tyson

In 2006, heayweight boxer Mike Tyson left an Arizona drug rehab center after only five days of treatment for cocaine abuse. The troubled ex-champ decided to check into the clinic in Phoenix for 30 days after being inspired by a recent trip to Chairman Mao's tomb in China.
(Andrew Yates / AFP - Getty Images)
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Keith Urban

Keith Urban returned to the concert stage in Janurary 2007 after undergoing treatment for alcohol abuse. "I'm looking forward to getting back on the road, to reconnecting with everyone and to doing what it is that I love to do," said the country star, who wed fellow Aussie Nicole Kidman just four months before checking into rehab.
(John Russell / AP)
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Robin Williams

In 2006, after 20 years of being sober, Robin Williams began drinking again and checked himself into rehab for alcohol addiction. At the time his rep said the Oscar winner "found himself drinking again and decided to take proactive measures to deal with this for his own well-being and the well-being of his family."
(Dan Steinberg / AP)
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Billy Joel

In 2005, less than a year after marrying his third wife, Kate Lee, Billy Joel checked into the Betty Ford Center in Rancho Mirage, Calif., for a month-long stint for alcohol abuse. The singer/songwriter first sought help in 2002 at a substance abuse and psychiatric center in Connecticut.
(Roland Magunia / AFP - Getty Images)
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Editor's note:
This image contains graphic content that some viewers may find disturbing.